body{
    background-color: #f6f6f6
}
.head{
    height: 60px;
    background-color: #009dd7;
    /* width: 100% */
}
.head .head_min a{
    display: block;
    width: 120px;
    height: 36px;
    text-align: center;
    color: white;
    background-color: #1cade9;
    margin: 14px 7px 0;
    line-height: 36px;
    border-radius: 3px
}
.head .logo{
    background: url(http://daily.zhihu.com/img/Web_Logo.png) no-repeat;
    height: 48px;
    width: 200px;
    margin-top: 12px
}
.head_min{
    max-width: 600px;
    margin: 0 auto;
    height: 60px
}
.head_min .top_android{
    background:url(../img/android.png) no-repeat;
    width: 17px;
    height: 20px;
    display: inline-block;
    vertical-align: middle;
    margin-right:10px ;
    background-size: 17px 20px
}
.head_min .top_iPhone{
    background:url(../img/iPhone.png) no-repeat;
    width: 17px;
    height: 20px;
    display: inline-block;
    vertical-align: middle;
    background-size: 17px 20px;
    margin-right:10px ;
}
.head_min span{
    vertical-align: -2px;
}
.main{
    max-width: 600px;
    margin: 0 auto
}
.hed_img{
    /* height: 375px; */
    overflow: hidden;
    position: relative
}
.hed_img img{
    margin-top:-18% ;
    z-index: 0;
    max-width: 100%
}
.shade{
    background-color: rgba(0,0,0,0.2);
    width: 100%;
    height:100%;
    position: absolute ;
    top: 0
}
.shade h1{
    margin: 0 97px 0 41px;
    font-size: 28px;
    color: white;
    position: absolute;
    bottom: 30px
}
.shade p{
    color: #9c9d9d;
    position: absolute;bottom: 9px;text-align: right;right: 40px
}
.author{
    font-size: 16px;
    padding: 0 40px;
    height: 46px;
    background-color: white;
    line-height: 59px;
    overflow: hidden;
}
.nickname{
    color: #444
}
.bio{
    color: #999
}
.author img{
    margin-right: 5px
}
.question{
    height: 149px;
    padding: 10px 40px;
    font-size: 16px;
    line-height: 48px;
    background-color: #fff;
    margin-top: 5px;
}
.bottom_qrcode{
    height: 309px;
    box-sizing: border-box;
    padding-top: 40px;
    background-color: #fff;
    margin-top:5px ;
    text-align: center;
    overflow: hidden;
}
.bottom_qrcode h3{
    font-size: 18px
}
.bottom_qrcode p{
    color: #b8b8b8;
    font-size: 14px;
    line-height: 50px
}
.bottom_qrcode img{
    margin-top:8px 
}
.footer{
    text-align: center;
    height: 56px;
    line-height: 56px;
    text-align: center;
}
.moble_header{
    display: none;
    background-color: white;
    height: 62px;
    padding: 7px 10px 7px 16px;
    box-sizing: border-box;
    line-height: 200%
}
.m_logo{
    margin-right:10px
}
.moble_header h4{
    font-size: 17px
}
.moble_header p{
    color: #666666
}
.m_download a{
    height: 28px;
    width: 66px;
    color: white;
    background-color: #04c62e;
    display: block;
    text-align: center;
    line-height: 28px;
    border-radius: 3px;
    margin-top:10px 
}
.bottom-recommend{
    background-color: #fff
}
.footer_download{
    display: none;
    margin:0 10px;
    background-color: #fff;
    border-top: #e4e2df solid 1px;
    text-align: center;
    position: relative
}
.download_link{
    display: block;
    height: 55px;
    line-height: 55px;
    font-size: 14px;
    text-align: center;
    border-radius: 2px;
    color: #fff;
    background-color: #0cbaf5;
    margin-top: 15px;
}
.recommend_link{
    height: 60px;
    padding: 10px;
    display: block;
    background-color: #faf9f8;
    font-size: 15px;
    padding: 10px;
    color: black;
    text-align: left;
    margin-top: 5px
}
.footer_download span{
    background-color: #fff;
    position: relative;
    top: -8px;
    width: 64px;
    display: block;
    margin: 0 auto
}
@media screen and (max-width:480px){
    .head_min{
        display: none
    }
    .moble_header{
        display: block
    }
    .shade h1{
        font-size: 21px
    }
    .hed_img{
        /* height: 308px */
    }
    .shade p{
        right: 11px
    }
    .shade h1{
        margin: 0 0 0 20px;
        bottom: 25px
    }
    .author{
        padding: 0 20px
    }
    .question{
        padding: 10px 20px
    }
    .footer{
        background-color: #fff
    }
    .footer_download{
        display: block
    }
    .bottom_qrcode{
        display: none
    }
}